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Date:      Sat, 5 Oct 1996 13:42:25 -0400 (EDT)
From:      Stephen Hovey <shovey@buffnet.net>
To:        Peter Childs <pjchilds@imforei.apana.org.au>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Help! /bin/csh is gone!
Message-ID:  <Pine.BSI.3.95.961005134124.29236B-100000@buffnet7.buffnet.net>
In-Reply-To: <199610051233.WAA16911@al.imforei.apana.org.au>

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I dont know that I would want an auto-remap.  After manually running the
routine to remap, I had to fsck to uncorrupt thing - a scsi remap just
effectively replaces a sector with data on it that went bad, with a sector
of wide open nothing.

On Sat, 5 Oct 1996, Peter Childs wrote:

> 
> > >  Some scsi drives come with badsector remapping turned off for some
> > >  stupid reason... check the freebsd faq about using the
> > >  'scsi'
> > >  command to enable it for this drive.. that should fix your problem.
> > 
> > I use adaptec controllers precisely because they have routine easily
> > gotten to in the bios that will 'verify' a drive and perform the remap
> > etc.
> 
>  Hmm.. fair enuff... anyway.. we are probabaly on different wave
>  lengths but the FAQ (2.16) states...
> 
>  --quote--
> 
> To enable this, you'll need to edit the first device page mode,
> which can be done on FreeBSD by giving the
> command (as root)
> 
>  scsi -f /dev/rsd0c -m 1 -e -P 3
> 
> and changing the values of AWRE and ARRE from 0 to 1:- 
> 
>  AWRE (Auto Write Reallocation Enbld):  1
>  ARRE (Auto Read Reallocation Enbld):  1
> 
>  --endquote--
> 
>  I was suprised to fine neary every scsi drive on the machines
>  i look after had these off :(  When one of my news disks on
>  a ccd went down it caused me a lot of pain before i found this
>  option and turned it on.
> 
>  Regards,
>    Peter
> 
> --
>  Peter Childs  ---  http://www.imforei.apana.org.au/~pjchilds
>   Finger pjchilds@al.imforei.apana.org.au for public PGP key
>          Drag me, drop me, treat me like an object!
> 




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